This book contains a) the first Devanagari edition of the Kasyapaparivarta the unique Sanskrit manuscript which (supposedly written sometime in the 7th or 8th century CE in Khotan) was discovered more than a hundred years ago in Eastern Turkestan, and b) an English translation of this text. The main themes of the text are the bodhisattva ideal and the teaching of sunyata, `emptiness', both being the key features of the Great Vehicle.